Surfacing-machine.



G. ALLOWAY.

SURFAGING MACHINE.

APPLICATION FILED MABJ30, 1910.

Patented Jan 24, 1911.

2 SHEETS-SHEET 1.

G. ALLOWAY.

SURFAGING MAOHINE.

APPLIOATIOH IILED MAR. 30, 1910.

982,408. Patented Jan. 24, 1911.

1 I 2 SHEETS-SHEET 2.

I 1 j 22 W GUY ALLOWAY, OF SEATTLE, WASHINGTON.

SURFACING-MACHINE.

Specification of Letters Patent.

Patented Jan. 24, 1911.

Application filed March 30, 1910. Serial No. 552,489.

To all whom it may concern: Be it known that I, GUY ALLOWAY, a citizenof the United States of America, and a resident of the city of Seattle,in the county of King and State of Washin ton, have invented certain newand useful mprovements in Surfacing-Machines, of which the following isa specification.

My invention relates to machines of the above type, havin moreparticular reference to machlnes for ressing floors, and has for its'.-rimary object the provision of a simplifie and improved constructionwherein the operation of the dressin rolls is facilitated.

A further object resic es in the provision of a novel construction whichcan be readily reduced to a more compact form.

With the above and other objects in view, to be referred to as mydescription progresses, my invention resides in the features ofconstruction, arrall ell'lents and combinations of parts hereinafterdescribed and succinctl defined in my annexed claims.

Re erring to the accompanying drawings, wherein like numerals ofreference indicate like parts throughout: Figure 1 is a side elevation,with parts shown in section, of a machine embodying the features ofmyinvention. Fig. 2 is a top plan thereof. Fig. 3 is a fragmentarysectional view, on enlarged. scale, taken through the rotatable rollcarrying head. Fig. 4 is a section taken on line 44 of" Fig. 3, with thedressing rolls removed. Fig. 5 is a section taken through one of thedressing rolls and its related pan. Fig. 6 is a fragmentary sectionalview of the'rear end portion of the machine frame, and Fig. 7 is adetailed plan view of the upper guide for the vertically adjustablebear- In carrying out my invention I provide a rotatably supported head1 which is conveniently provided with a pair of oppositely disposedaxles 2 for the surfacing rolls 3,

the latter being provided with bevel gears 4 meshin with a relativelyfixed similar gear 5, w ereby upon rotation thereof with ead 1 in ahorizontal plane they will also be caused to turn about their own axesagainst the floor or other surface to be dressed as will be readilyunderstood.

Head 1 is fixed on thelower end portion of a vertically disposed shaft 6which is hollow and connected with a suitable dust receiver 7 throughthe medium of the coupling 8 and the conducting pipe 9, which latter hasangularly disposed end portions on one of which con ling 8 is.slidablysupported, thereby provi ing a convenient arran ement for efiectingready disen genient o shaft 6, as will later be more fu y set forth.

Receiver 7, which is preferably formed of suitable fabric, can besupported in any desired manner, a preferred arrangement, however,consisting in making the same fast to the downturned discharge endportion of pipe 9, which latter may be suitably flared for an obviouspurpose.

Head 1 is hollow and preferably divided into opposite chambers by a.vertical partition 1, each of which chambers has communication with arespective receiver or pan 10. These receivers or pans lO are disposedhorizontally in front of respective dressing rolls 3 and form mouths forthe dust collecting mechanism, suction being created therein, upon rapidrotation ofhead 1, to effect the conveyance of the dust-like materialremoved from the floor through action of rolls 3, as will be readilyunderstood.

In supporting shaft 6 for rotation, I journal the same in a bearing 11,the same being in the form of an elongated sleeve and havin gear 5 fixedto itslower end.

iearing 11 is supported for vertical shding by guides 12 and 13, of asuitable supporting frame 14, and is confined between head 1 and a drivepulley 15, of shaft 6, whereby said shaft is connected therewith forsimultaneous vertical adjustment.

Supporting frame 14 comprises a latform, mounted on suitable wheels 16,16 the latter of which are preferably journaled in pivoted frames 16",and superstructure, as 14, preferably formed of hollowtubmg, as shown.

Reference numeral 17 indicates a suitable motor mounted on the platformof frame 14 and connected by a belt 18 with pulley 15.

Reference numeral 19 indicates an adjusting device for-shaft 6, the samebeing fulcrumed, as at 20, on the frame platform and connected with agrooved ring 21, loosely enwork-l4. (see Fig.6). This obviously placesrolls 3 under a yielding pressureand enables them to abrade in a moreeven and accurate manner. In elevating rolls 3, lever 19 is swung 1n thereverse directlon to exert its lifting force through spring 22.

Guide 12 slidably receives bearing 11 and one section thereof is hingedto the other, as

12 and 13, as will be readily understood. While pipe 9 can be otherwisesupported.

a convenient arrangement consists in mounting the same on an uprightextension of I the frame superstructure 14".

A machine constructed as hereinbefore described can be operated in anefiieient man- -ner through the provision ofthe yielding like.

connection between the supporting frame and the vertical shaft of thesurfacing rolls,

will collect the material removed by rolls from the surfacebeing'operated on, and further, is capable of having its s'urfacing'rolls and adjacent related parts quickly positioned and removed from theframe.

Rolls 3 can be of any desired construction.

I prefer however, to construct the same with a removable facing 3 of"sand paper or the Having thus described my invention, what I claim asnew, and desire to secure by Letters Patent' of the United States ofAmer- 1ca,1s: i

1. A surfacing machine comprising a supporting frame, a head rotatablysupported thereon, a roll rotatably su ported on said head, means forrotating said roll about its own axis by and during rotary movement ofsaid head, and means for yieldingly pressing said head to its loweredposition while permitting of relative vertical movement of said frame.

2. A surfacing machine comprising a supporting frame, a verticallydisposed shaft supported on said frame for rotation and for verticaladjustment, a drive means on said frame for operating said shaft, ayielding connection between said shaft and frame tending to hold saidshaft lowered while permitting'of relative vertical movement of saidframe, a head on the lower end portion of said shaft, a roll rotatablysupported on said head, and means for rotating said roll porting frame,a vertical shaft, a head on the lower end portion of said shaft, :1horizontally disposed roll journaled on said I head, means for rotatingsaid roll about its own axis during 1tS'Il10V8Il1eIlt,\V1tl1 said head,a bearing for said shaft supported for vertical adjustmenton said frame,said shaft being connected with said bearing for vertical adjustmenttherewith, means for adjusting said bearing, and yielding connectingmeans between said last means-and said bearing.

4. A surfacing machine comprising a supporting frame, a head providedwith surface dressing means,a shaft carrying said head, means 011 saidframe supporting said shaft for rotation and for vertical adjustment,said means including a vertically adjustable bearing, means on saidframe for adjusting said bearing, and a yielding connecting meansbetween said last means and said bearing.

5. A surfacing machine comprising a supporting frame, a bearingsupported for vertical adjustment on said frame, means for adjustingsaidbearing vertically, yielding means interposed. between said first meansand said bearing for holding said bearing lowered, a shaft journaled insaid bearing and connected therewith for vertical adjustment, andsurface dressing means carried by said shaft.

6. A surfacing machine comprising a supporting frame, a verticallydisposed bearing, upper and lower guides supporting said bearing forvertical adjustment, adjusting means for said bearing, springs on saidbearing on opposite sides of said adjusting means, a shaft journaled insaid bearing and connected therewith for vertical adjustment, andsurface dressing means carried by said shaft.

7 A surfacing machine comprising a 'sup porting frame, a verticallydisposed bearing,

upper and lower guides removably holding said bearing for verticaladjustment, the lower of said guidescomprising outwardly projectingapertured lugs, guide lugs on said frame engaged in the apertures ofsaid lower guide, a shaft journaled in said bearing and connectedtherewith for vertical adjustment, surface dressing means carried bysaid shaft, means for ad usting sald bear-mg vertically, and .a yieldingconnection be- I tween said bearing and said last means.

Signed at Seattle, Washington, this 22d day of March 1910.

GUY, ALLOWAY.

Witnesses: j

A. A. BOOTH, STEPHEN A. BRooKs.

